biopolymer

Using new and specialized 3D printing technology, engineers were able to deposit a bio-friendly hydrogel into a classic cantilever design just 7 by 2 millimeters in size and seeded with heart cells from a rat. The cells grew into a matrix and began doing what heart cells do best – beating. By depositing the cells in a particular arrangement throughout the 3D structure, and coaxing them to grow in the desired ways, the beats eventually produced controlled forward movement. After a number of false starts and inferior designs, the researchers were able to build a biobot that moved consistently — albeit at only 236 micrometers per second, or 0.00053 miles per hour.

A crack team of nanoengineers and biologists have created a non-volatile memory device out of salmon DNA and silver nanoparticles which might lead to the next revolution in optical storage.

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